AH32 Shipbuilding Steel Chemical Composition:
Grade | C max | Si max | Mn | P max | S max | Als min | Ti max | Cu max | Cr max | Ni max | Mo max |
AH32 | 0.18 | 0.50 | 0.90-1.60 | 0.035 | 0.035 | 0.015 | 0.02 | 0.35 | 0.20 | 0.40 | 0.08 |
Note: Generally speaking CE will be ≤0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.36% (thickness ≤ 50mm),≤0.38%( when the thickness >50-100). Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
Ah32 steel plate Mechanical Property
Ah32 steel plate Mechanical Property
Grade | Rm (MPa) | Re(MPa) min | A% min | Akv/J min | ||||||
AH32 | 440-570 | 315 | 22 | E.T °C | Thickness (mm) | |||||
0 | ≤ 50 | >50-70 | >70-100 | |||||||
L | C | L | C | L | C | |||||
31 | 22 | 38 | 26 | 46 | 31 | |||||
Note: In the list , Rm: .tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.
Ah32 steel plate Condition Of Delivery
Grade | Fine grains elements | category | The thickness of steel | |||||
≤ 12 | >12.5-20 | >20-25 | >25-35 | >35-50 | >50-100 | |||
AH32 | Nb+V or V | Plate/ sheet | A(50) | N(50),CR(50),TM(50) | N(50),CR(25),TM(50) | |||
Profile steel | N(50),CR(50),TM(50),AR*(25) | - | ||||||
Al or Al+Ti | Plate/ sheet | A(50) | AR*(25) | - | ||||
N(50),CR(50),TM(50) | N(50),CR(25),TM(50) | |||||||
Profile steel | A(50) | N(50),CR(50),TM(50),AR*(25) | - | |||||
NOTES:
A. Delivery Condition: As Rolled(AR), Controled Rolling(CR),Thermal Mechanical Control Process(TMCP),Normalizing(N),Tempering(T), Annealing(A), Quenching(Q), Quenching & Tempering(QT).
B. The Ultrasonic inspection can be done according to ASTM A435, ASTM A577, ASTM A578, EN10160, SEL072, NFA 04-305, BS5996 standard.
C. Additional Service: Heat treatment, Charpy V tes, Pre treatment,Cutting,Galvanization.
D. Classification Society like ABS , BV , DNV , GL, KR, LR, NK, RINA.
Contrast in the different standard
ASTM A131M | TOCT 5521 | JIS G3106 | BS LR | GB712 |
AH32 | A32 | SM490B SM490C | AH32 | A32 |
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